Malicious PDF — malware analysis report

Static analysis result for SHA-256 158e96ef83ac9821…

MALICIOUS

PDF

43.4 KB Created: 2020-08-12 19:25:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d8f9a6dc1377970c21796147f99e905a SHA-1: 4c135a52244d48e40d523c64aba8d2901e43dee8 SHA-256: 158e96ef83ac98210f85dfb2379e96330c62d1efba41521098546f4b9ada979b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, presented as a download lure. The primary redirector link, https://ttraff.cc/pify?keyword=alyson+noel+evermore+pdf+download, is flagged as malicious. This suggests the document is designed to lead users to potentially harmful content or phishing sites, leveraging a link farm and SEO tactics to appear legitimate. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=alyson+noel+evermore+pdf+download In PDF document text
    • http://fowavur.thehorshamkitchencompany.co.uk/uploads/1/3/1/0/131070767/xozujexib_gudojadonanenab_dofezexoxiwer.pdfIn PDF document text
    • http://malepofut.schoolagestars.com/uploads/1/3/0/9/130969352/bevilurox.pdfIn PDF document text
    • http://files.brownstone-canberra-ec.com/uploads/1/3/1/4/131406544/8e8a7e0625.pdfIn PDF document text
    • http://mekezojo.talkingaboutteaching.com/uploads/1/3/2/6/132695925/80ae563344e.pdfIn PDF document text
    • http://files.mariamorjane.com/uploads/1/3/2/6/132682989/576a2d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/vofobakajikoniwuru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/fasolakiralubutamok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/xiserazizefanuminajij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/97691960449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/funota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8833/files/rijagapupijup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/sivejukofivelikezigubugox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/kopofuziregebusezuduvab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/28515515621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4317/6091/files/d_d_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9315/6259/files/derupefusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/30985798364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/zudevivogefuxad.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 5428 bytes
SHA-256: 19bd72b4e8c1d41de31f9074aa352bed53181f5d33993f2a2896a0763bd55d2e
font_01_sfnt_off000074f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F0 13832 bytes
SHA-256: 90d137fb4a587b1d0333b3be488d9eb7322d8f04694d99357639fd4d504577de

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